Window-sash adjuster



Jan. 7, 1930. J. BIRON WINDOW SASH ADJUSTER Filed April 13, 1929INVENTOR (/OSE'PH BIRD/v av I 4 4f TTORNEYS Patented Jan. 7, 1930 UNITEDSTATES JOSEPH BIRON, or MAILLARDVILLEQ" arrier:"ooL BraQommDAWINDOW-SASH ADJUSTER i 7' Application filed April 13,

a corresponding lowering of the upper sash.

may be effected or vice versa.

The invention consists essentially of a pair of cables or cords eachhaving one end secured to one sash and adjustably secured'to the otherat the other end, which sash cables are adapted to run over pulleysattached to the head of the window frame, as will be more fullydescribed in the following specification, and shown'in the accompanyingdrawings in which 1-- Fig. 1 is a fragmentary general view of theinvention. 7

Fig. 2 is a perspective view of the left hand fastening member attachedto the stile of the lower sash.

Fig. 3 is a cross section taken on the line 33 of Fig. 2.

In the drawings like characters of reference indicate correspondingparts in each figure.

The numeral 1 indicates generally a window frame having socalled pulleystiles 2 and a head 3. Between the pulley stiles 2 are slidably fitted alower and an upper sash numbered 4 and 5 respectively. The sashes areformed in the usualmanner with stiles 6 and meeting rails 7 and theupper sash 5 is fitted with a top rail 8.

Secured adjacent each end of the head 3 of the frame 1 is a pulley 9over which a cord or light cable 10 is adapted to run, one end of eachcable is secured by a fastening plate 11 to a stile 6 of the upper sash5 and the other. end of the cable it attached to the upper end of aslide generally indicated by the numeral 12 as at 13 see particularlyFigure 2. The slide 12 consists of a pair of spaced plates 14 and 15,the former being of 1929.. Sara no. 354905;;

greater width than the latter, the purpose of which will hereinafterappear.

The plates 14. and 15 are held in spaced relation by an upper and alowerpin re spectively numbered 16 and 17, the pin 16 forming ananchorge for one end of the cable 10 and the pin 17 forming a pivot uponwhich a sidewise rocking pawl 18 having a lower hooked member 19 isfulcrumed. A pair of guides 20 are fitted on the face of the stiles 6each of which consists of aback plate 21, see Figure 2, fitted withopposed side rails 22 and 28. V

The rails 22 and 23 are so mounted as to provide a pair of-verticalgrooves 24: which are adapted to receive the edges of the plate 14 ofthe slide to hold it in place and to permit of its free verticalmovement along the guides 20. A plurality of sawtooth recesses 25 areformed in the face of the rail 28 which are capable of receivingthe pawl18 and holding the slide against upward movement when so engaged. Theguides 20 will preferably be formed in'pairs one with the sawtoothrecesses on one side and one with said recesses on the opposite side sothat a person on pulling both sides downwards by the hooked members19,0f the pawls 18 will tend to inclinesaid pawls to engage theirrespective recesses. I

-Having thus described the several parts of my invention I will nowbriefly explain its operation.

\Vhen it is desired to open the upper window the hook members 19 aremoved side wise to disengage the recesses 25 and to permit the slides 12to move upwards along the guides 20 and the top sash to descend to thedesired opening when the pawls are permitted to engage the recesses tolock the slides in adjusted position. Should the opening be desired atboth top and bottom of the window the lower sash is then raised andthrough the cords 10 the top sash still further lowered.

If it is desired to open the lower sash only, it is raised inthe usualway and the hooked members 19 are drawn downwards along the guides 20until the cables 10 are taut when the rocking of the pawls 18 locks theslide 12 and leaves the sash in adjusted position.

What I claim as my invention is: In Window sash adjuster, a uide adaptedfor attachment to a sash and tted with recesses, a slide adapted to beanchored remote from said sash, said slide having a pawl, and handoperated means for rocking the pawl to engage one of the recesses of theguide to lock the slide to adjusted position. Dated at Vancouver, B. 0.,this 4th day of April, 1929.

JOSEPH BIRON.

